臺灣博碩士論文加值系統

中文摘要

　　本研究裡用計算流體力學(CFD)之Fluent軟體，對新型風力渦輪，名M1於設計階段之空氣動力特性數值做探討；以數學式包含二維穩態與三維非穩態的質量守恆、動量守恆方程式求解。求解流場包含層流與紊流，而紊流的計算採用ｋ-ε兩方程式紊流模型。本研究之三維、漸縮、有扭轉的風力渦輪M1葉片採用混合HH-10/HH-12非對稱形翼切面作設計。與其相關重要的氣動力性質，包含壓力、扭力、氣動功率等，本研究在大範圍的風速與葉片偏斜角做探討。所得預測結果將可提供設計人員作應力分析的設計參考，並做為將來進ㄧ步做風車氣動力學分析的負載條件。

ABSTRACT

Present work conducts computer simulations with the Computational Fluid Dynamic (CFD) software package Fluent as a modeling tool to explore aerodynamic characteristics of a new Wind Turbine named M1. In this research, the governing equations consisting of two-dimensional, steady and three-dimensional, time-dependent conservation of mass and momentum are solved. Both laminar and turbulent flow fields are solved. For the turbulent flow computation, the k-ε two-equation turbulent model is adopted. The three-dimensional, tapered and twisted M1 wind turbine blade used in this study employs a hybrid HH-10/HH-12 non-symmetrical airfoil in the design. The important aerodynamic properties, including pressure, torque, and aerodynamic power, are determined under broad ranges of wind speed and pitch angle. The results of the predictions can provide the designers with references for stress analyses as well as the input loading conditions for further areoelastic analysis.

目錄

封面內頁
簽名頁
授權書 iii
中文摘要 iv
英文摘要 v
誌謝 vi
目錄 vii
圖目錄 ix
表目錄 xi
符號說明 xii

第一章 前言
1.1研究背景與動機 1
1.2風車輸出與風速之關係 2
1.3研究目的 3
第二章 文獻回顧
2.1二維模擬分析文獻回顧 5
2.2三維模擬分析文獻回顧 9
第三章 研究方法與進行步驟
3.1 NACA0012翼切面之二維流場模擬 13
3.1.1 NACA0012翼切面幾何外型 13
3.1.2 NACA0012翼切面模擬條件 13
3.1.3 NACA0012翼切面二維模擬網格 14
3.1.4 二維流場數值計算方法與收斂條件 14
3.2新型小型風車M1翼切面之三維流場動態模擬 16
3.2.1 新型小型風車M1翼切面幾何外型 16
3.2.2 新型小型風車M1模擬條件 16
3.2.3 新型小型風車M1三維滑動網格 16
3.2.4 三維流場數值計算方法與收斂條件 17
第四章 結果與討論
4.1 NACA0012翼切面之結果與討論 19
4.2新型小型風車M1翼切面之結果與討論 21
4.2.1 格點相依結果 21
4.2.2 固定風速、轉速，不同偏斜角下層流與紊流比較 21
4.2.3 12m/s、偏斜角等於0°、5°、10°下不同轉速結果討論 23
4.2.4 啟動模式結果討論 23
第五章 結論
參考文獻 51

參考文獻

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